<template>
  <h1>app</h1>
  <breadCrumb :data="data"></breadCrumb>
  <router-view></router-view>
</template>

<script setup>
import {ref,getCurrentInstance,onMounted} from 'vue'

let data = ref([])

onMounted(()=>{
  console.log(getCurrentInstance());
  let instance = getCurrentInstance()

  let $bus = instance.appContext.config.globalProperties.$bus
  $bus.$on('breadChange',input=>{
    console.log(input,78979798);
    data.value = input
  })
})

</script>